David d



( No Model) D. D. MARTIN.

GAR COUPLING.

No. 585,586. Patented June 29,1897.

I .l in Q H Wu K W W H M M W M a 6 I UNITED STATES ATENT OFFICE.

DAVID D. MARTIN, OF KNICKERBOCKER, TEXAS, ASSIGNOR OF ONE-HALF TO GEORGE F. DAVIS AND FREDERICK DAVIS, OF SAME PLACE.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 585,586, dated June 29, 1897.

Application filed December 21, 1896. Serial Na 616,508. (No model.)

To all whom it may concern.-

Be it known that 1, DAVID D. ll/IARTIN, a citizen of the United States, and a resident of Knickerbocker, in the county of Tom Green, State of TeXas, have invented new and use ful Improvements in Oar-Couplers, of which the following is a specification.

My invention has for its objects to provide an automatic link-coupler which shall embody strength, simplicity, certainty of action, and adaptability for manipulation without entering between the ears and withoutnecessity of relieving strain; and my invention consists in features of novelty involving these and other advantages, as will hereinafter be fully described, and particularly pointed out in the claims.

In the accompanying drawings, Figures 1 and 2 are vertical longitudinal sections through two car-couplers, each embodying the principles of my invention, but different from each other in some details of construction. Fig. 3 is a front View of the form shown in Fig. 1; and Fig. 4: is a perspective view of the combined setting, locking, and uncoupling lever.

My invention comprises a draw-head 1, having link-opening 2 and having the vertical slot 3, in which the coupling-jaw lis pivoted upon the horizontal pivot 5. The jaw carries the link-pin 6, which engages the link, and a lower locking-tongue 7, which is engaged by the combined locking, setting, and uncoupling lever 8. Said lever 8 has the uncoupling and setting arm 9, which may be turned up against the curved edge 12 of the jaw 4 and into the seat or notch 13, so as to raise the pin 6 out of engagement with the link and hold said pin elevated until the link again enters the head and strikes the inclined face 6 of the pin, raising said pin until the arm 9 is released from the notch 13 and then throwing said arm back and permitting the pin to fall into engagement with the link. The lever 8 is further provided with locking-arm 10, which, after the arm 9 is thrown down, rests upon the locking-tongue 7 and prevents the jaw being jolted up sufficiently to release the link. The thrust upon the arm 10 is in such a direction as to prevent misplacing said arm.

To insure said arm 10 assuming the proper position above the tongue 7, a shoulder 14 is formed upon the rear end of said tongue, so that the arm 9 may rest thereon. The lever S is further provided with trunnions 15, by which it is mounted in the draw-head, and on its outer end it carries a crank 11, by which it may be turned up to uncouple and set the aw.

Inasmuch as the pin 6 is tapered or rounded and the point of engagement of the arm. 9 is so far removed from its pivot thatthe jaw can be lifted out of engagement with the link, even while tension is on the link, this is ad vantageous in dividing trains on a car when it becomes necessary to draw up the train by sections.

The seat 16, upon which the pin rests, is depressed, and this permits it to get sufficiently below the link to avoid danger of the latter pulling out from beneath the pin. When the arm 9 is moved upward, it raises the jaw 4 till the pin 6 withdraws from the link. Continued movement of the arm 9 ejects the link.

From the foregoing description it will be observed that I have provided an automatic coupler and an automatically-locking lever and link-ejector operated with one movement and without the necessity of getting between the cars, and adapted for use on cars of different heights. It may also be arranged that it may be controlled from a number of different points, or even by the engineer without leaving the cab.

Having thus described my invention, the

following is what I claim as new therein and upon said shoulder when coupled and holding the other arm in locking relation to the tongue; as explained.

3. In a car-coupler, the combination of the head formed with the pin and notch making a shoulder adjacent to the base of the pin, and an uncoupling and supporting lever having an arm which engages in the notch; said pin being constructed with a bevel end to receive the link and cause lifting of the jaw so :0 that the arm escapes from the notch and may be thrown back by the link as explained.

DAVID D. MARTIN. \Vitnesscs:

PENROSE N. J ONS, JAs. J. NEILL. 

